沼气池的活动口就是位于沼气池顶部上面的活动通道口,是沼气池的重要部位,其主要功能:是沼气池施工期间供人员、施工材料进出和发酵料液投入取出的通道口,也是沼气池检修时便于采光和通风的天窗口,十分重要,不可或缺。农村户用沼气活池动口虽已形成标准化应用 The activity mouth of biogas digester is the activity passage mouth located above the top of biogas digester, which is an important part of biogas digester. Its main function is to set up a channel for manpower, construction materials in and out and fermentation feed liquid to be taken in and out, and also biogas Pool maintenance is convenient for lighting and ventilation of the sky window, is very important and indispensable. Although rural household biogas tanks have become a standard application